Firearm handguard



FIG. 1 is a top, front, left side perspective view of a firearm handguard according to the present disclosure.

FIG. 2 is a right side view of the firearm handguard of FIG. 1.

FIG. 3 is a left side view of the firearm handguard of FIG. 1.

FIG. 4 is a top view of the firearm handguard of FIG. 1.

FIG. 5 is a bottom view of the firearm handguard of FIG. 1; and,

FIG. 6 is a bottom, front, right side perspective view of the firearm handguard of FIG. 1.

The broken lines in the Figures illustrate portions of the article that form no part of the claimed design. 

CLAIM The ornamental design for a firearm handguard, as shown and described. 